<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style>
	   <!-- 这是nav   -->
		.nav {
			width: 200px;
			height: 220px;
			background-color: pink;
		}
		.header {
			color: red;
		}

	</style>
</head>
<body>

	<div class="nav"></div>
	<div class="header">
		<div class="logo"></div>
		<div class="search"></div>
	</div>
</body>
</html>